git-annex/Command/WebApp.hs

45 lines
1.2 KiB
Haskell

{- git-annex webapp launcher
-
- Copyright 2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.WebApp where
import Common.Annex
import Command
import Assistant
import Utility.WebApp
import Utility.Daemon (checkDaemon)
import qualified Command.Watch
def :: [Command]
def = [withOptions [Command.Watch.foregroundOption, Command.Watch.stopOption] $
command "webapp" paramNothing seek "launch webapp"]
seek :: [CommandSeek]
seek = [withFlag Command.Watch.stopOption $ \stopdaemon ->
withFlag Command.Watch.foregroundOption $ \foreground ->
withNothing $ start foreground stopdaemon]
start :: Bool -> Bool -> CommandStart
start foreground stopdaemon = notBareRepo $ do
if stopdaemon
then stopDaemon
else do
f <- liftIO . absPath =<< fromRepo gitAnnexHtmlShim
ifM (checkpid <&&> checkshim f) $
( liftIO $ go f
, startDaemon True foreground $ Just $ go f
)
stop
where
checkpid = do
pidfile <- fromRepo gitAnnexPidFile
liftIO $ isJust <$> checkDaemon pidfile
checkshim f = liftIO $ doesFileExist f
go f = unlessM (runBrowser url) $
error $ "failed to start web browser on url " ++ url
where
url = "file://" ++ f